|
| heat
resistance |
Silicone rubber maintains
its features at high temparature of 600˚F with superior tensity, resilience
and abrasion resistance than common organic rubber.
While C-C bond energy of organic synthetic rubber is 83 kcal/mol,
silicone rubber has more stronger heat resistance.
Usable temperature range is usually 150℃ ~ 250℃, reaching 350℃ for
occasional short use. |
|
| resilience |
Silicone rubber has resilience to
restore to original form after pressure between between -120˚F and
500˚F. |
|
chemical
resistance |
Silicone rubber can meet user's various
needs, especially has strong resistance against a solvent for fluoric
rubber and other chamicals. |
|
| food/cosmetics |
Silicone rubber is harmless to human,
So added in both ways, directly and indirectly, especially widely
used in cosmetics. |
|
| intensity |
Silicone rubber has superior intensity
than common organic rubber.
Silicone has strong intensity at high temperature of 200˚F ~ 350˚F |
|
elasticity at low
temperature |
Silicone rubber usually maintain its
properties at -75˚F, special silicone rubber covers up to -150 F.
|
|
| cold-proof |
cold-proof of silicone is the most
excellent among all kind of rubber.
While saturation point of common organic rubber is -20℃ ~ -40℃, silicone
rubber's is -60℃~ 70℃. So silicone rubber maintains elasticity under
the condition that organic rubber breaks up by shock. PVMQ(silicone
rubber containing Phenyl) stands the lower temperature up to -100℃.
|
|
| worn-out proof |
Silicone rubber is free of double
bond in molecular structure which occurs germs weakening the material
reacting with oxygen, ozone, ultra violet in the air. With strong
worn-out proof, silicone rubber never change in properties after long
out-door use. |
|
permanent
compressed
shrinkage |
While shrinkage of organic rubber
increases remarkably according to temperature, silicone rubber keeps
elasticity and resilience in broad temperature range between -100℃
~ 250℃. It works perpectly even under extremely bad condition. |
|
chamical resitance/
water, heat resitance |
Silicone rubber is not damaged by
polarized organic compound like acid and alkali.
And any physical properties does not occur under long sunken in water
and long steam contact. |
|
| oil-proof |
Silicone rubber,except fluoric rubber,
has excellent oil-proof at high temparature which common organic rubber
is not usuable.
Application example: oil seal, O-ring, diaphragm, etc, all kind of
parts for internal combustion engine. check valve. |
|
| flame resistance |
Silicone rubber is not flammable due
to low composition of hydrocarbon in molecular structure, not causing
any poisioned gas in flame due to no halogen element.
Further, silicone rubber can be manufactured into non-flammable, self-distingushing
material, satisfying UL standards by adding non-flammable agents.
Application example : anomi cap of TV, focused cap of video camera,
rubber sleeve, non-flamable insulating wire. |
|
